<s>
under	O
the	O
name	O
Coco	O
,	O
and	O
later	O
rebranded	O
to	O
Confidential	B-Language
Consortium	I-Language
Framework	I-Language
;	O
(	O
CCF	O
)	O
is	O
an	O
open-source	B-License
framework	O
for	O
the	O
development	O
of	O
a	O
new	O
category	O
performant	O
applications	O
that	O
focus	O
on	O
the	O
optimization	O
of	O
secure	B-Protocol
multi-party	I-Protocol
computation	I-Protocol
and	O
data	O
availability	O
.	O
</s>
<s>
Intended	O
to	O
accelerate	O
the	O
adoption	O
of	O
blockchain	B-Application
technology	I-Application
by	O
enterprise	O
;	O
CCF	O
can	O
enable	O
a	O
variety	O
of	O
high-scale	O
,	O
confidential	O
permissioned	O
distributed	O
ledger	O
networks	O
that	O
meet	O
key	O
enterprise	O
requirements	O
.	O
</s>
<s>
CCF	O
provides	O
a	O
multi-party	B-Protocol
computation	I-Protocol
(	O
MPC	O
)	O
model	O
of	O
programming	O
that	O
prioritizes	O
highly-available	O
data	O
storage	O
and	O
a	O
universally-verifiable	O
data	O
log	O
implemented	O
a	O
ledger	O
abstraction	O
.	O
</s>
<s>
As	O
a	O
permissioned	O
framework	O
,	O
CCF	O
leverages	O
trust	O
in	O
a	O
consortium	B-Application
of	O
governing	O
members	O
and	O
in	O
a	O
network	O
of	O
replicated	O
hardware-protected	O
execution	O
environments	O
(	O
also	O
known	O
as	O
trusted	O
execution	O
environments	O
 [ TEEs ] 	O
such	O
as	O
Intel	O
Software	O
Guard	O
Extensions	O
 [ SGX ] 	O
.	O
</s>
<s>
CCF	O
embeds	O
consensus	B-Operating_System
protocols	I-Operating_System
with	O
Byzantine	B-Operating_System
and	O
crash	O
fault	B-General_Concept
tolerant	I-General_Concept
configurations	O
.	O
</s>
<s>
CCF	O
supports	O
transparent	O
,	O
programmable	O
governance	O
where	O
the	O
power	O
of	O
the	O
consortium	B-Application
members	O
is	O
tunable	O
and	O
their	O
activity	O
is	O
similarly	O
recorded	O
in	O
the	O
ledger	O
for	O
full	O
auditability	O
.	O
</s>
<s>
The	O
Confidential	B-Language
Consortium	I-Language
Framework	I-Language
was	O
presented	O
at	O
Free	O
and	O
Open	B-License
source	I-License
Software	O
Developers	O
 '	O
European	O
Meeting	O
FOSDEM	O
2020	O
in	O
Brussels	O
,	O
Belgium	O
.	O
</s>
<s>
The	O
CCF	O
source	O
code	O
is	O
licensed	O
under	O
Apache	B-Application
2.0	I-Application
License	I-Application
and	O
available	O
on	O
GitHub	B-Application
.	O
</s>
<s>
It	O
runs	O
on	O
Linux	B-Application
and	O
,	O
according	O
to	O
Microsoft	O
,	O
it	O
is	O
primarily	O
developed	O
and	O
tested	O
on	O
Ubuntu	B-Operating_System
18.04	O
.	O
</s>
